Date: Tue, 1 May 2012 07:23:34 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Lukas - status report #2 Hi Lukas, On Tue, May 01, 2012 at 02:57:01AM +0200, Lukas Odzioba wrote: > LAST WEEK: > I made wpapsk-cuda and opencl formats work as they should - you can > "crack" hccap files. That's very nice. I noticed that you created this wiki page: http://openwall.info/wiki/john/WPA-PSK Maybe you can add a specific example to it (a sample input file, commands to run on it, their output) and link to it more prominently? > Cpu version was working for a moment, but I made some magic changes > and broke something :) - (I cannot restore it) Please do make it work again. I assume it's not in magnum-jumbo yet? Here's what I am getting with the code currently in magnum-jumbo: user@...l:~/john/magnum-jumbo/run$ ./john -te -fo=wpapsk-cuda Benchmarking: wpapsk-cuda [GPU]... DONE Raw: 17341 c/s real, 17341 c/s virtual This is 43% of hashcat's reported speed for this card. user@...l:~/john/magnum-jumbo/run$ ./john -te -fo=wpapsk-opencl OpenCL platform 0: NVIDIA CUDA, 1 device(s). Using device 0: GeForce GTX 570 OpenCL error (CL_OUT_OF_RESOURCES) in file (opencl_wpapsk_fmt.c) at line (122) - (Run kernel) Not important right now (since we have CUDA working), but nasty. I wonder if the same would occur on some AMD cards as well. user@...l:~/john/magnum-jumbo/run$ ./john -te -fo=wpapsk-opencl -pla=1 OpenCL platform 1: AMD Accelerated Parallel Processing, 2 device(s). Using device 0: Tahiti Optimal Group work Size = 128 Benchmarking: wpapsk-opencl [pbkdf2-sha1]... DONE Raw: 64000 c/s real, 531692 c/s virtual This is quite nice. hashcat is reported to do 158.1k c/s on 5970, so our target speed for 7970 may be about 130k c/s. user@...l:~/john/magnum-jumbo/run$ ./john -te -fo=wpapsk-opencl -pla=1 -dev=1 OpenCL platform 1: AMD Accelerated Parallel Processing, 2 device(s). Using device 1: AMD FX(tm)-8120 Eight-Core Processor Optimal Group work Size = 16 Benchmarking: wpapsk-opencl [pbkdf2-sha1]... DONE Raw: 2133 c/s real, 267 c/s virtual This is also reasonable, although a CPU-specific implementation using the intrinsics should be much faster. > NEXT WEEK > Finnish wpapsk formats (wpapsk-cuda,wpapsk-opencl,wpapsk). > Find and fix problems with my code on Bull. Yes, please. Thanks, Alexander
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